发明授权
US6133333A Soft and flexible foams made from blends of alkenyl aromatic polymers
and alpha-olefin/vinyl or vinylidene aromatic and/or sterically
hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers
失效
由烯基芳族聚合物和α-烯烃/乙烯基或亚乙烯基芳族和/或空间位阻脂族或脂环族乙烯基或亚乙烯基共聚体的共混物制成的软和柔性泡沫
- 专利标题: Soft and flexible foams made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers
- 专利标题(中): 由烯基芳族聚合物和α-烯烃/乙烯基或亚乙烯基芳族和/或空间位阻脂族或脂环族乙烯基或亚乙烯基共聚体的共混物制成的软和柔性泡沫
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申请号: US428575申请日: 1999-10-26
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公开(公告)号: US6133333A公开(公告)日: 2000-10-17
- 发明人: Bharat I. Chaudhary , Lawrence S. Hood , Russell P. Barry
- 申请人: Bharat I. Chaudhary , Lawrence S. Hood , Russell P. Barry
- 申请人地址: MI Midland
- 专利权人: The Dow Chemical Company
- 当前专利权人: The Dow Chemical Company
- 当前专利权人地址: MI Midland
- 主分类号: C08J9/04
- IPC分类号: C08J9/04 ; C08J9/00 ; C08L23/00 ; C08L23/08 ; C08L25/00 ; C08L25/04 ; C08L25/06 ; C08J9/18 ; C08J9/20 ; C08J9/22
摘要:
A soft foam having an Asker C hardness of less than about 65, comprising;(A) from about 30 to about 70 percent by weight (based on the combined weight of Components A and B) of one or more alkenyl aromatic polymers and wherein at least one of said alkenyl aromatic polymers has a molecular weight (M.sub.w) of from about 100,000 to about 500,000; and(B) from about 30 to about 70 percent by weight (based on the combined weight of Components A and B) of one or more substantially random interpolymers; and(C) optionally, one or more nucleating agents; and(D) optionally, one or more other additives; and(E) one or more blowing agents present in a total amount of from about 0.4 to about 5.0 gram-moles per kilogram (based on the combined weight of Components A and B).
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